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Resource fork on UFS
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Resource fork on UFS


  • Subject: Resource fork on UFS
  • From: Tim Hewett <email@hidden>
  • Date: Fri, 1 Aug 2003 22:06:30 +0100

Hello,

Not strictly Cocoa as such but I am looking for information on the
spec of how HFS+ resource fork information gets stored on non-HFS+
volumes, e.g. UFS. I'm aware that the resource fork info gets put in
a hidden UFS file with the same name as the main data fork file but
with "._" prepended to the name, but it's the format of the contents
I am interested in. The UFS resource fork files are consistently
slightly larger than the HFS+ fork and a binary comparison
between them fails right at the start - the UFS version seems to
have about 80 extra bytes at the start.

I need to modify hfstar to be able to extract resource fork info onto
HFS or UFS volumes and to adapt to the resource fork format as
appropriate - anyone know if the UFS resource fork format is defined
somewhere so I can do this?

Regards,

Tim.
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